http://floatationlocations.com/
It's big business. Used to be some schools would let you use theirs and study you for classes. That's old school. Things have transcended to a more business end these days as that site suggests.
Sensory deprivation basically detaches you from reality. Some experience hallucinations...or rather in this case visions. Some people don't experience anything.
I've been wanting to try one of these for years,but I doubt any establishment would look favorably upon a big gent like me zoned outta his gourd off hallucinogens using their's,i might not want to come out or go Altered States and terrorize thee city..





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